To show connectivity information in isometric generated after detaching and attaching reference model.
In OpenPlant Modeler, user has generated an isometric for a model having referenced model, but when user detach the referenced model attach again and generates isometric connectivity information is lost.
If above problem still persist, then please create a Service Request and contact the Bentley Product Advantage group. Please include a list of all relevant details to get in depth analysis for a solution or workaround.
http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/29122.how-to-add-a-lookup-value-for-a-particular-constraint
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